status_cxx1998.xml revision 1.6 
1<section xmlns="http://docbook.org/ns/docbook" version="5.0" 
2	 xml:id="status.iso.1998" xreflabel="ISO C++ 1998">
3<?dbhtml filename="status_iso_cxx1998.html"?>
4
5<info><title>C++ 1998/2003</title>
6  <keywordset>
7    <keyword>ISO C++</keyword>
8    <keyword>1998</keyword>
9  </keywordset>
10</info>
11
12
13<section xml:id="iso.1998.status" xreflabel="Implementation Status">
14<info><title>Implementation Status</title></info>  
15
16<para>
17This status table is based on the table of contents of ISO/IEC 14882:2003.
18</para>
19
20<para>
21This page describes the C++ support in the GCC 6 series.
22</para>
23
24<!-- Status is Yes or No, Broken/Partial-->
25<!--
26   Yes
27
28   No
29      <?dbhtml bgcolor="#C8B0B0" ?>
30   Broken/Partial
31      <?dbhtml bgcolor="#B0B0B0" ?>
32-->
33<table frame="all" xml:id="table.cxx98_status">
34  <title>C++ 1998/2003 Implementation Status</title>
35
36<tgroup cols="4" align="left" colsep="0" rowsep="1">
37<colspec colname="c1"/>
38<colspec colname="c2"/>
39<colspec colname="c3"/>
40<colspec colname="c4"/>
41  <thead>
42    <row>
43      <entry>Section</entry>
44      <entry>Description</entry>
45      <entry>Status</entry>
46      <entry>Comments</entry>
47    </row>
48  </thead>
49
50  <tbody>
51    <row>
52      <entry>
53	<emphasis>18</emphasis>
54      </entry>
55      <entry namest="c2" nameend="c4" align="left">
56	<emphasis>Language support</emphasis>
57      </entry>
58    </row>
59
60    <row>
61      <entry>18.1</entry>
62      <entry>Types</entry>
63      <entry>Y</entry>
64      <entry/>
65    </row>
66    <row>
67      <entry>18.2</entry>
68      <entry>Implementation properties</entry>
69      <entry>Y</entry>
70      <entry/>
71    </row>
72    <row>
73      <entry>18.2.1</entry>
74      <entry>Numeric Limits</entry>
75      <entry/>
76      <entry/>
77    </row>
78    <row>
79      <entry>18.2.1.1</entry>
80      <entry>Class template <code>numeric_limits</code></entry>
81      <entry>Y</entry>
82      <entry/>
83    </row>
84    <row>
85      <entry>18.2.1.2</entry>
86      <entry><code>numeric_limits</code> members</entry>
87      <entry>Y</entry>
88    </row>
89    <row>
90      <entry>18.2.1.3</entry>
91      <entry><code>float_round_style</code></entry>
92      <entry>Y</entry>
93    </row>
94    <row>
95      <entry>18.2.1.4</entry>
96      <entry><code>float_denorm_style</code></entry>
97      <entry>Y</entry>
98    </row>
99    <row>
100      <entry>18.2.1.5</entry>
101      <entry><code>numeric_limits</code> specializations</entry>
102      <entry>Y</entry>
103      <entry/>
104    </row>
105    <row>
106      <entry>18.2.2</entry>
107      <entry>C Library</entry>
108      <entry>Y</entry>
109      <entry/>
110    </row>
111    <row>
112      <entry>18.3</entry>
113      <entry>Start and termination</entry>
114      <entry>Y</entry>
115      <entry/>
116    </row>
117    <row>
118      <entry>18.4</entry>
119      <entry>Dynamic memory management</entry>
120      <entry>Y</entry>
121      <entry/>
122    </row>
123    <row>
124      <entry>18.5</entry>
125      <entry>Type identification</entry>
126      <entry/>
127      <entry/>
128    </row>
129    <row>
130      <entry>18.5.1</entry>
131      <entry>Class type_info</entry>
132      <entry>Y</entry>
133      <entry/>
134    </row>
135    <row>
136      <entry>18.5.2</entry>
137      <entry>Class bad_cast</entry>
138      <entry>Y</entry>
139      <entry/>
140    </row>
141    <row>
142      <entry>18.5.3</entry>
143      <entry>Class bad_typeid</entry>
144      <entry>Y</entry>
145      <entry/>
146    </row>
147    <row>
148      <entry>18.6</entry>
149      <entry>Exception handling</entry>
150      <entry/>
151      <entry/>
152    </row>
153    <row>
154      <entry>18.6.1</entry>
155      <entry>Class exception</entry>
156      <entry>Y</entry>
157      <entry/>
158    </row>
159    <row>
160      <entry>18.6.2</entry>
161      <entry>Violation exception-specifications</entry>
162      <entry>Y</entry>
163      <entry/>
164    </row>
165    <row>
166      <entry>18.6.3</entry>
167      <entry>Abnormal termination</entry>
168      <entry>Y</entry>
169      <entry/>
170    </row>
171    <row>
172      <entry>18.6.4</entry>
173      <entry><code>uncaught_exception</code></entry>
174      <entry>Y</entry>
175      <entry/>
176    </row>
177    <row>
178      <entry>18.7</entry>
179      <entry>Other runtime support</entry>
180      <entry>Y</entry>
181      <entry/>
182    </row>
183    <row>
184      <entry>
185	<emphasis>19</emphasis>
186      </entry>
187      <entry namest="c2" nameend="c4" align="left">
188	<emphasis>Diagnostics</emphasis>
189      </entry>
190    </row>
191    <row>
192      <entry>19.1</entry>
193      <entry>Exception classes</entry>
194      <entry>Y</entry>
195      <entry/>
196    </row>
197    <row>
198      <entry>19.2</entry>
199      <entry>Assertions</entry>
200      <entry>Y</entry>
201      <entry/>
202    </row>
203    <row>
204      <entry>19.3</entry>
205      <entry>Error numbers</entry>
206      <entry>Y</entry>
207      <entry/>
208    </row>
209    <row>
210      <entry>
211	<emphasis>20</emphasis>
212      </entry>
213      <entry namest="c2" nameend="c4" align="left">
214	<emphasis>General utilities</emphasis>
215      </entry>
216    </row>
217    <row>
218      <entry>20.1</entry>
219      <entry>Requirements</entry>
220      <entry>Y</entry>
221      <entry/>
222    </row>
223   <row>
224      <entry>20.2</entry>
225      <entry>Utility components</entry>
226      <entry/>
227      <entry/>
228    </row>
229    <row>
230      <entry>20.2.1</entry>
231      <entry>Operators</entry>
232      <entry>Y</entry>
233      <entry/>
234    </row>
235    <row>
236      <entry>20.2.2</entry>
237      <entry><code>pair</code></entry>
238      <entry>Y</entry>
239      <entry/>
240    </row>
241   <row>
242      <entry>20.3</entry>
243      <entry>Function objects</entry>
244      <entry/>
245      <entry/>
246    </row>
247    <row>
248      <entry>20.3.1</entry>
249      <entry>Base</entry>
250      <entry>Y</entry>
251      <entry/>
252    </row>
253    <row>
254      <entry>20.3.2</entry>
255      <entry>Arithmetic operation</entry>
256      <entry>Y</entry>
257      <entry/>
258    </row>
259    <row>
260      <entry>20.3.3</entry>
261      <entry>Comparisons</entry>
262      <entry>Y</entry>
263      <entry/>
264    </row>
265    <row>
266      <entry>20.3.4</entry>
267      <entry>Logical operations</entry>
268      <entry>Y</entry>
269      <entry/>
270    </row>
271    <row>
272      <entry>20.3.5</entry>
273      <entry>Negators</entry>
274      <entry>Y</entry>
275      <entry/>
276    </row>
277    <row>
278      <entry>20.3.6</entry>
279      <entry>Binders</entry>
280      <entry>Y</entry>
281      <entry/>
282    </row>
283    <row>
284      <entry>20.3.7</entry>
285      <entry>Adaptors for pointers to functions</entry>
286      <entry>Y</entry>
287      <entry/>
288    </row>
289    <row>
290      <entry>20.3.8</entry>
291      <entry>Adaptors for pointers to members</entry>
292      <entry>Y</entry>
293      <entry/>
294    </row>
295    <row>
296      <entry>20.4</entry>
297      <entry>Memory</entry>
298      <entry/>
299      <entry/>
300    </row>
301    <row>
302      <entry>20.4.1</entry>
303      <entry>The default allocator</entry>
304      <entry>Y</entry>
305      <entry/>
306    </row>
307    <row>
308      <entry>20.4.2</entry>
309      <entry>Raw storage iterator</entry>
310      <entry>Y</entry>
311      <entry/>
312    </row>
313    <row>
314      <entry>20.4.3</entry>
315      <entry>Temporary buffers</entry>
316      <entry>Y</entry>
317      <entry/>
318    </row>
319    <row>
320      <entry>20.4.4</entry>
321      <entry>Specialized algorithms</entry>
322      <entry>Y</entry>
323      <entry/>
324    </row>
325    <row>
326      <entry>20.4.4.1</entry>
327      <entry><code>uninitialized_copy</code></entry>
328      <entry>Y</entry>
329      <entry/>
330    </row>
331    <row>
332      <entry>20.4.4.2</entry>
333      <entry><code>uninitialized_fill</code></entry>
334      <entry>Y</entry>
335      <entry/>
336    </row>
337    <row>
338      <entry>20.4.4.3</entry>
339      <entry><code>uninitialized_fill_n</code></entry>
340      <entry>Y</entry>
341      <entry/>
342    </row>
343    <row>
344      <entry>20.4.5</entry>
345      <entry>Class template <code>auto_ptr</code></entry>
346      <entry>Y</entry>
347      <entry/>
348    </row>
349    <row>
350      <entry>20.4.6</entry>
351      <entry>C library</entry>
352      <entry>Y</entry>
353      <entry/>
354    </row>
355    <row>
356      <entry>
357	<emphasis>21</emphasis>
358      </entry>
359      <entry namest="c2" nameend="c4" align="left">
360	<emphasis>Strings</emphasis>
361      </entry>
362    </row>
363    <row>
364      <entry>21.1</entry>
365      <entry>Character traits</entry>
366      <entry/>
367      <entry/>
368    </row>
369    <row>
370      <entry>21.1.1</entry>
371      <entry>Character traits requirements</entry>
372      <entry>Y</entry>
373      <entry/>
374    </row>
375    <row>
376      <entry>21.1.2</entry>
377      <entry>traits typedef</entry>
378      <entry>Y</entry>
379      <entry/>
380    </row>
381    <row>
382      <entry>21.1.3</entry>
383      <entry><code>char_traits</code> specializations</entry>
384      <entry/>
385      <entry/>
386    </row>
387    <row>
388      <entry>21.1.3.1</entry>
389      <entry>struct <code>char_traits&lt;char&gt;</code></entry>
390      <entry>Y</entry>
391      <entry/>
392    </row>
393    <row>
394      <entry>21.1.3.2</entry>
395      <entry>struct <code>char_traits&lt;wchar_t&gt;</code></entry>
396      <entry>Y</entry>
397      <entry/>
398    </row>
399    <row>
400      <entry>21.2</entry>
401      <entry>String classes</entry>
402      <entry>Y</entry>
403      <entry/>
404    </row>
405    <row>
406      <entry>21.3</entry>
407      <entry>Class template <code>basic_string</code></entry>
408      <entry>Y</entry>
409      <entry/>
410    </row>
411    <row>
412      <entry>21.4</entry>
413      <entry>Null-terminated sequence utilities</entry>
414      <entry>Y</entry>
415      <entry>C library dependency</entry>
416    </row>
417    <row>
418      <entry>
419      	<emphasis>22</emphasis>
420      </entry>
421      <entry namest="c2" nameend="c4" align="left">
422	<emphasis>Localization</emphasis>
423      </entry>
424    </row>
425    <row>
426      <entry>22.1</entry>
427      <entry>Locales</entry>
428      <entry/>
429      <entry/>
430    </row>
431    <row>
432      <entry>22.1.1</entry>
433      <entry>Class <code>locale</code></entry>
434      <entry>Y</entry>
435      <entry/>
436    </row>
437    <row>
438      <entry>22.1.2</entry>
439      <entry><code>locale</code> globals</entry>
440      <entry>Y</entry>
441      <entry/>
442    </row>
443    <row>
444      <entry>22.1.3</entry>
445      <entry>Convenience interfaces</entry>
446      <entry/>
447      <entry/>
448    </row>
449    <row>
450      <entry>22.1.3.1</entry>
451      <entry>Character classification</entry>
452      <entry>Y</entry>
453      <entry/>
454    </row>
455    <row>
456      <entry>22.1.3.2</entry>
457      <entry>Character conversions</entry>
458      <entry>Y</entry>
459      <entry/>
460    </row>
461    <row>
462      <entry>22.2</entry>
463      <entry>Standard locale categories</entry>
464      <entry/>
465      <entry/>
466    </row>
467    <row>
468      <entry>22.2.1</entry>
469      <entry><code>ctype</code></entry>
470      <entry>Y</entry>
471      <entry/>
472    </row>
473    <row>
474      <entry>22.2.2</entry>
475      <entry>Numeric</entry>
476      <entry/>
477      <entry/>
478    </row>
479    <row>
480      <entry>22.2.2.1</entry>
481      <entry><code>num_get</code></entry>
482      <entry>Y</entry>
483      <entry/>
484    </row>
485    <row>
486      <entry>22.2.2.2</entry>
487      <entry><code>num_put</code></entry>
488      <entry>Y</entry>
489      <entry/>
490    </row>
491    <row>
492      <entry>22.2.3</entry>
493      <entry><code>num_punct</code></entry>
494      <entry>Y</entry>
495      <entry/>
496    </row>
497    <row>
498      <entry>22.2.4</entry>
499      <entry><code>collate</code></entry>
500      <entry>Y</entry>
501      <entry/>
502    </row>
503    <row>
504      <entry>22.2.5</entry>
505      <entry>Time</entry>
506      <entry/>
507      <entry/>
508    </row>
509    <row>
510      <entry>22.2.5.1</entry>
511      <entry><code>time_get</code></entry>
512      <entry>Y</entry>
513      <entry/>
514    </row>
515    <row>
516      <entry>22.2.5.2</entry>
517      <entry><code>time_get_byname</code></entry>
518      <entry>Y</entry>
519      <entry/>
520    </row>
521    <row>
522      <entry>22.2.5.3</entry>
523      <entry><code>time_put</code></entry>
524      <entry>Y</entry>
525      <entry/>
526    </row>
527    <row>
528      <entry>22.2.5.3</entry>
529      <entry><code>time_put_byname</code></entry>
530      <entry>Y</entry>
531      <entry/>
532    </row>
533    <row>
534      <entry>22.2.6</entry>
535      <entry>Monetary</entry>
536      <entry/>
537      <entry/>
538    </row>
539    <row>
540      <entry>22.2.6.1</entry>
541      <entry><code>money_get</code></entry>
542      <entry>Y</entry>
543      <entry/>
544    </row>
545    <row>
546      <entry>22.2.6.2</entry>
547      <entry><code>money_put</code></entry>
548      <entry>Y</entry>
549      <entry/>
550    </row>
551    <row>
552      <entry>22.2.6.3</entry>
553      <entry><code>money_punct</code></entry>
554      <entry>Y</entry>
555      <entry/>
556    </row>
557    <row>
558      <entry>22.2.6.4</entry>
559      <entry><code>money_punct_byname</code></entry>
560      <entry>Y</entry>
561      <entry/>
562    </row>
563    <row>
564      <entry>22.2.7</entry>
565      <entry><code>messages</code></entry>
566      <entry>Y</entry>
567      <entry/>
568    </row>
569    <row>
570      <entry>22.2.8</entry>
571      <entry>Program-defined facets</entry>
572      <entry>Y</entry>
573      <entry/>
574    </row>
575    <row>
576      <entry>22.3</entry>
577      <entry>C Library Locales</entry>
578      <entry>Y</entry>
579      <entry/>
580    </row>
581    <row>
582      <entry>
583	<emphasis>23</emphasis>
584      </entry>
585      <entry namest="c2" nameend="c4" align="left">
586	<emphasis>Containers</emphasis>
587      </entry>
588    </row>
589    <row>
590      <entry>23.1</entry>
591      <entry>Container requirements</entry>
592      <entry>Y</entry>
593      <entry/>
594    </row>
595    <row>
596      <entry>23.2</entry>
597      <entry>Sequence containers</entry>
598      <entry/>
599      <entry/>
600    </row>
601    <row>
602      <entry>23.2.1</entry>
603      <entry>Class template <code>deque</code></entry>
604      <entry>Y</entry>
605      <entry/>
606    </row>
607    <row>
608      <entry>23.2.2</entry>
609      <entry>Class template <code>list</code></entry>
610      <entry>Y</entry>
611      <entry/>
612    </row>
613    <row>
614      <entry>23.2.3</entry>
615      <entry>Adaptors</entry>
616      <entry/>
617      <entry/>
618    </row>
619    <row>
620      <entry>23.2.3.1</entry>
621      <entry>Class template <code>queue</code></entry>
622      <entry>Y</entry>
623      <entry/>
624    </row>
625    <row>
626      <entry>23.2.3.2</entry>
627      <entry>Class template <code>priority_queue</code></entry>
628      <entry>Y</entry>
629      <entry/>
630    </row>
631    <row>
632      <entry>23.2.3.3</entry>
633      <entry>Class template <code>stack</code></entry>
634      <entry>Y</entry>
635      <entry/>
636    </row>
637    <row>
638      <entry>23.2.4</entry>
639      <entry>Class template <code>vector</code></entry>
640      <entry>Y</entry>
641      <entry/>
642    </row>
643    <row>
644      <entry>23.2.5</entry>
645      <entry>Class <code>vector&lt;bool&gt;</code></entry>
646      <entry>Y</entry>
647      <entry/>
648    </row>
649    <row>
650      <entry>23.3</entry>
651      <entry>Associative containers</entry>
652      <entry/>
653      <entry/>
654    </row>
655    <row>
656      <entry>23.3.1</entry>
657      <entry>Class template <code>map</code></entry>
658      <entry>Y</entry>
659      <entry/>
660    </row>
661    <row>
662      <entry>23.3.2</entry>
663      <entry>Class template <code>multimap</code></entry>
664      <entry>Y</entry>
665      <entry/>
666    </row>
667    <row>
668      <entry>23.3.3</entry>
669      <entry>Class template <code>set</code></entry>
670      <entry>Y</entry>
671      <entry/>
672    </row>
673    <row>
674      <entry>23.3.4</entry>
675      <entry>Class template <code>multiset</code></entry>
676      <entry>Y</entry>
677      <entry/>
678    </row>
679    <row>
680      <entry>
681	<emphasis>24</emphasis>
682      </entry>
683      <entry namest="c2" nameend="c4" align="left">
684	<emphasis>Iterators</emphasis>
685      </entry>
686    </row>
687    <row>
688      <entry>24.1</entry>
689      <entry>Requirements</entry>
690      <entry>Y</entry>
691      <entry/>
692    </row>
693    <row>
694      <entry>24.2</entry>
695      <entry>Header <code>&lt;iterator&gt;</code> synopsis</entry>
696      <entry>Y</entry>
697      <entry/>
698    </row>
699    <row>
700      <entry>24.3</entry>
701      <entry>Iterator primitives</entry>
702      <entry>Y</entry>
703      <entry/>
704    </row>
705    <row>
706      <entry>24.4</entry>
707      <entry>Predefined iterators and Iterator adaptors</entry>
708      <entry/>
709      <entry/>
710    </row>
711    <row>
712      <entry>24.4.1</entry>
713      <entry>Reverse iterators</entry>
714      <entry>Y</entry>
715      <entry/>
716    </row>
717    <row>
718      <entry>24.4.2</entry>
719      <entry>Insert iterators</entry>
720      <entry>Y</entry>
721      <entry/>
722    </row>
723    <row>
724      <entry>24.5</entry>
725      <entry>Stream iterators</entry>
726      <entry/>
727      <entry/>
728    </row>
729    <row>
730      <entry>24.5.1</entry>
731      <entry>Class template <code>istream_iterator</code></entry>
732      <entry>Y</entry>
733      <entry/>
734    </row>
735    <row>
736      <entry>24.5.2</entry>
737      <entry>Class template <code>ostream_iterator</code></entry>
738      <entry>Y</entry>
739      <entry/>
740    </row>
741    <row>
742      <entry>24.5.3</entry>
743      <entry>Class template <code>istreambuf_iterator</code></entry>
744      <entry>Y</entry>
745      <entry/>
746    </row>
747    <row>
748      <entry>24.5.4</entry>
749      <entry>Class template <code>ostreambuf_iterator</code></entry>
750      <entry>Y</entry>
751      <entry/>
752    </row>
753    <row>
754      <entry>
755	<emphasis>25</emphasis>
756      </entry>
757      <entry namest="c2" nameend="c4" align="left">
758	<emphasis>Algorithms</emphasis>
759      </entry>
760    </row>
761    <row>
762      <entry>25.1</entry>
763      <entry>Non-modifying sequence operations</entry>
764      <entry>Y</entry>
765      <entry/>
766    </row>
767    <row>
768      <entry>25.2</entry>
769      <entry>Mutating sequence operations</entry>
770      <entry>Y</entry>
771      <entry/>
772    </row>
773    <row>
774      <entry>25.3</entry>
775      <entry>Sorting and related operations</entry>
776      <entry>Y</entry>
777      <entry/>
778    </row>
779    <row>
780      <entry>25.4</entry>
781      <entry>C library algorithms</entry>
782      <entry>Y</entry>
783      <entry/>
784    </row>
785    <row>
786      <entry>
787      <emphasis>26</emphasis>
788      </entry>
789      <entry namest="c2" nameend="c4" align="left">
790	<emphasis>Numerics</emphasis>
791      </entry>
792    </row>
793    <row>
794      <entry>26.1</entry>
795      <entry>Numeric type requirements</entry>
796      <entry>Y</entry>
797      <entry/>
798    </row>
799    <row>
800      <entry>26.2</entry>
801      <entry>Complex numbers</entry>
802      <entry>Y</entry>
803      <entry/>
804    </row>
805    <row>
806      <entry>26.3</entry>
807      <entry>Numeric arrays</entry>
808      <entry/>
809      <entry/>
810    </row>
811    <row>
812      <entry>26.3.1</entry>
813      <entry>Header <code>&lt;valarray&gt;</code> synopsis</entry>
814      <entry>Y</entry>
815      <entry/>
816    </row>
817    <row>
818      <entry>26.3.2</entry>
819      <entry>Class template <code>valarray</code></entry>
820      <entry>Y</entry>
821      <entry/>
822    </row>
823    <row>
824      <entry>26.3.3</entry>
825      <entry><code>valarray</code> non-member operations</entry>
826      <entry>Y</entry>
827      <entry/>
828    </row>
829    <row>
830      <entry>26.3.4</entry>
831      <entry>Class <code>slice</code></entry>
832      <entry>Y</entry>
833      <entry/>
834    </row>
835    <row>
836      <entry>26.3.5</entry>
837      <entry>Class template <code>slice_array</code></entry>
838      <entry>Y</entry>
839      <entry/>
840    </row>
841    <row>
842      <entry>26.3.6</entry>
843      <entry>Class <code>gslice</code></entry>
844      <entry>Y</entry>
845      <entry/>
846    </row>
847    <row>
848      <entry>26.3.7</entry>
849      <entry>Class template <code>gslice_array</code></entry>
850      <entry>Y</entry>
851      <entry/>
852    </row>
853    <row>
854      <entry>26.3.8</entry>
855      <entry>Class template <code>mask_array</code></entry>
856      <entry>Y</entry>
857      <entry/>
858    </row>
859    <row>
860      <entry>26.3.9</entry>
861      <entry>Class template <code>indirect_array</code></entry>
862      <entry>Y</entry>
863      <entry/>
864    </row>
865    <row>
866      <entry>26.4</entry>
867      <entry>Generalized numeric operations</entry>
868      <entry/>
869      <entry/>
870    </row>
871    <row>
872      <entry>26.4.1</entry>
873      <entry><code>accumulate</code></entry>
874      <entry>Y</entry>
875      <entry/>
876    </row>
877    <row>
878      <entry>26.4.2</entry>
879      <entry><code>inner_product</code></entry>
880      <entry>Y</entry>
881      <entry/>
882    </row>
883    <row>
884      <entry>26.4.3</entry>
885      <entry><code>partial_sum</code></entry>
886      <entry>Y</entry>
887      <entry/>
888    </row>
889    <row>
890      <entry>26.4.4</entry>
891      <entry><code>adjacent_difference</code></entry>
892      <entry>Y</entry>
893      <entry/>
894    </row>
895    <row>
896      <entry>26.4.5</entry>
897      <entry>iota</entry>
898      <entry>Y</entry>
899      <entry/>
900    </row>
901    <row>
902      <entry>26.5</entry>
903      <entry>C Library</entry>
904      <entry>Y</entry>
905      <entry/>
906    </row>
907    <row>
908      <entry>
909	<emphasis>27</emphasis>
910      </entry>
911      <entry namest="c2" nameend="c4" align="left">
912	<emphasis>Input/output</emphasis>
913      </entry>
914    </row>
915    <row>
916      <entry>27.1</entry>
917      <entry>Requirements</entry>
918      <entry>Y</entry>
919      <entry/>
920    </row>
921    <row>
922      <entry>27.2</entry>
923      <entry>Forward declarations</entry>
924      <entry>Y</entry>
925      <entry/>
926    </row>
927    <row>
928      <entry>27.3</entry>
929      <entry>Standard iostream objects</entry>
930      <entry>Y</entry>
931      <entry/>
932    </row>
933    <row>
934      <entry>27.3.1</entry>
935      <entry>Narrow stream objects</entry>
936      <entry>Y</entry>
937      <entry/>
938    </row>
939    <row>
940      <entry>27.3.2</entry>
941      <entry>Wide stream objects</entry>
942      <entry>Y</entry>
943      <entry/>
944    </row>
945    <row>
946      <entry>27.4</entry>
947      <entry>Iostreams base classes</entry>
948      <entry>Y</entry>
949      <entry/>
950    </row>
951    <row>
952      <entry>27.5</entry>
953      <entry>Stream buffers</entry>
954      <entry>Y</entry>
955      <entry/>
956    </row>
957    <row>
958      <entry>27.6</entry>
959      <entry>Formatting and manipulators</entry>
960      <entry>Y</entry>
961      <entry/>
962    </row>
963    <row>
964      <entry>27.7</entry>
965      <entry>String-based streams</entry>
966      <entry>Y</entry>
967      <entry/>
968    </row>
969    <row>
970      <entry>27.8</entry>
971      <entry>File-based streams</entry>
972      <entry>Y</entry>
973      <entry/>
974    </row>
975    <row>
976      <entry>
977      	<emphasis>Appendix D</emphasis>
978      </entry>
979      <entry namest="c2" nameend="c4" align="left">
980	<emphasis>Compatibility features</emphasis>
981      </entry>
982    </row>
983    <row>
984      <entry>D.1</entry>
985      <entry>Increment operator with bool operand</entry>
986      <entry/>
987      <entry/>
988    </row>
989    <row>
990      <entry>D.2</entry>
991      <entry><code>static</code> keyword</entry>
992      <entry/>
993      <entry/>
994    </row>
995    <row>
996      <entry>D.3</entry>
997      <entry>Access declarations</entry>
998      <entry/>
999      <entry/>
1000    </row>
1001    <row>
1002      <entry>D.4</entry>
1003      <entry>Implicit conversion from const strings</entry>
1004      <entry/>
1005      <entry/>
1006    </row>
1007    <row>
1008      <entry>D.5</entry>
1009      <entry>C standard library headers</entry>
1010      <entry/>
1011      <entry/>
1012    </row>
1013    <row>
1014      <entry>D.6</entry>
1015      <entry>Old iostreams members</entry>
1016      <entry/>
1017      <entry/>
1018    </row>
1019    <row>
1020      <entry>D.7</entry>
1021      <entry>char* streams</entry>
1022      <entry/>
1023      <entry/>
1024    </row>
1025
1026  </tbody>
1027</tgroup>
1028</table>
1029</section>
1030
1031<section xml:id="iso.1998.specific" xreflabel="Implementation Specific"><info><title>Implementation Specific Behavior</title></info>
1032  
1033
1034   <para>
1035     The ISO standard defines the following phrase:
1036   </para>
1037   <blockquote>
1038     <variablelist>
1039     <varlistentry>
1040       <term>
1041	 <code>[1.3.5] implementation-defined behavior</code>
1042       </term>
1043       <listitem>
1044	 <para>
1045	 Behavior, for a well-formed program construct and correct data, that
1046	 depends on the implementation <emphasis>and that each implementation
1047	 shall document</emphasis>.
1048	 </para>
1049       </listitem>
1050     </varlistentry>
1051     </variablelist>
1052   </blockquote>
1053   <para>
1054     We do so here, for the C++ library only.  Behavior of the
1055     compiler, linker, runtime loader, and other elements of "the
1056     implementation" are documented elsewhere.  Everything listed
1057     in Annex B, Implementation Qualities, are also part of the
1058     compiler, not the library.
1059   </para>
1060   <para>
1061     For each entry, we give the section number of the standard, when
1062     applicable.  This list is probably incomplet and inkorrekt.
1063   </para>
1064   <para>
1065     <emphasis>[1.9]/11 #3</emphasis> If <code>isatty(3)</code> is true, then
1066      interactive stream support is implied.
1067   </para>
1068   <para>
1069     <emphasis>[17.4.4.5]</emphasis> Non-reentrant functions are probably best
1070      discussed in the various sections on multithreading (see above).
1071   </para>
1072   <!-- [17.4.4.8]/3 says any function that doesn't have an exception-spec
1073	can throw whatever we want; see also its footnote.  Let's list those
1074	in the sections where the function itself occurs.
1075   -->
1076   <para><emphasis>[18.1]/4</emphasis> The type of <code>NULL</code> is described
1077      under <link linkend="std.support.types.null">Support</link>.
1078   </para>
1079   <para><emphasis>[18.3]/8</emphasis> Even though it's listed in the library
1080      sections, libstdc++ has zero control over what the cleanup code hands
1081      back to the runtime loader.  Talk to the compiler people.  :-)
1082   </para>
1083   <para><emphasis>[18.4.2.1]/5</emphasis> (bad_alloc),
1084      <emphasis>[18.5.2]/5</emphasis> (bad_cast),
1085      <emphasis>[18.5.3]/5</emphasis> (bad_typeid),
1086      <emphasis>[18.6.1]/8</emphasis> (exception),
1087      <emphasis>[18.6.2.1]/5</emphasis> (bad_exception):  The <code>what()</code>
1088      member function of class <code>std::exception</code>, and these other
1089      classes publicly derived from it, simply returns the name of the
1090      class.  But they are the <emphasis>mangled</emphasis> names; you will need to call
1091      <code>c++filt</code> and pass the names as command-line parameters to
1092      demangle them, or call a
1093      <link linkend="manual.ext.demangle">runtime demangler function</link>.
1094      (The classes in <code>&lt;stdexcept&gt;</code> have constructors which
1095      require an argument to use later for <code>what()</code> calls, so the
1096      problem of <code>what()</code>'s value does not arise in most
1097      user-defined exceptions.)
1098   </para>
1099   <para><emphasis>[18.5.1]/7</emphasis> The return value of
1100      <code>std::type_info::name()</code> is the mangled type name (see the
1101      previous entry for more).
1102   </para>
1103   <para><emphasis>[20.1.5]/5</emphasis> <emphasis>"Implementors are encouraged to
1104      supply libraries that can accept allocators that encapsulate more
1105      general memory models and that support non-equal instances.  In such
1106      implementations, any requirements imposed on allocators by containers
1107      beyond those requirements that appear in Table 32, and the semantics
1108      of containers and algorithms when allocator instances compare
1109      non-equal, are implementation-defined."</emphasis>  There is experimental
1110      support for non-equal allocators in the standard containers in C++98
1111      mode. There are no additional requirements on allocators. It is undefined
1112      behaviour to swap two containers if their allocators are not equal.
1113   </para>
1114   <para><emphasis>[21.1.3.1]/3,4</emphasis>,
1115      <emphasis>[21.1.3.2]/2</emphasis>,
1116      <emphasis>[23.*]'s foo::iterator</emphasis>,
1117      <emphasis>[27.*]'s foo::*_type</emphasis>,
1118      <emphasis>others...</emphasis>
1119      Nope, these types are called implementation-defined because you
1120      shouldn't be taking advantage of their underlying types.  Listing them
1121      here would defeat the purpose.  :-)
1122   </para>
1123   <para><emphasis>[21.1.3.1]/5</emphasis> I don't really know about
1124      the <type>mbstate_t</type> stuff... see
1125      the <link linkend="std.localization.facet.codecvt"><code>codecvt</code>
1126      notes</link> for what does exist.
1127   </para>
1128   <para><emphasis>[22.*]</emphasis> Anything and everything we have on locale
1129      implementation will be described under
1130      <link linkend="std.localization.locales.locale">Localization</link>.
1131   </para>
1132   <para><emphasis>[23.*]</emphasis> All of the containers in this clause
1133     define <type>size_type</type> as <type>std::size_t</type> and
1134     <type>difference_type</type> as <type>std::ptrdiff_t</type>.
1135   </para>
1136   <para><emphasis>[26.2.8]/9</emphasis> I have no idea what
1137      <code>complex&lt;T&gt;</code>'s <code>pow(0,0)</code> returns.
1138   </para>
1139   <para><emphasis>[27.4.2.4]/2</emphasis> Calling
1140      <code>std::ios_base::sync_with_stdio</code> after I/O has already been
1141      performed on the standard stream objects will
1142      flush the buffers, and <!-- this line might go away -->
1143      destroy and recreate the underlying buffer instances.  Whether or not
1144      the previously-written I/O is destroyed in this process depends mostly
1145      on the <code>--enable-libio</code> choice:  for stdio, if the written
1146      data is already in the stdio buffer, the data may be completely safe!
1147   </para>
1148   <para><emphasis>[27.6.1.1.2]</emphasis>,
1149      <emphasis>[27.6.2.3]</emphasis> The I/O sentry ctor and dtor can perform
1150      additional work than the minimum required.  We are not currently taking
1151      advantage of this yet.
1152   </para>
1153   <para><emphasis>[27.7.1.3]/16</emphasis>,
1154      <emphasis>[27.8.1.4]/10</emphasis>
1155      The effects of <code>pubsetbuf/setbuf</code> are described in the
1156      <link linkend="std.io">Input and Output</link> chapter.
1157   </para>
1158   <para><emphasis>[27.8.1.4]/16</emphasis> Calling <code>fstream::sync</code> when
1159      a get area exists will... whatever <code>fflush()</code> does, I think.
1160   </para>
1161
1162</section>
1163
1164</section>
1165